Complete Course and Seminar Catalog

COURSE	DISCIPLINE	INSTRUCTOR
A Proactive Approach to Ensure Well Integrity During the Construction and Operation of Wells		Salim Taoutaou
A Systematic Approach to Water Management in Unconventional Reservoirs While Doing Surface Field Development Planning		Lorenzo Hernandez
Addressing New Opportunities in Mature Oil and Gas Fields		Arshad Khan
Advanced Coiled Tubing Engineering and Best Practices		Todd Green
Advanced Exploration and Drilling Geomechanics		Dr. Ahmed Abou-Sayed
Advanced Surface Engineering for Petroleum Engineers		M.A.K. Babi
Advanced Well Stimulation Field Problems		Dr. Hisham A. Nasr-El-Din
Advances in Formation Testing		Hani Elshahawi
An Introduction to Deepwater Operations		Barry Braniff
An Overview of Enhanced Heavy Oil Recovery		Behrooz Fattahi
An Overview of Microseismic Imaging of Hydraulic Fracturing		Kenneth D. Mahrer
An Overview of Multistage Completion Systems for Hydraulic Fracturing		Aaron Burton
Analytical and Numerical Methods for Transient Analysis		Medhat (Med) M. Kamal
Application of Lean Manufacturing Principles to the Upstream Oil Industry		Malcolm E. Allen, Dyke W. Reese
Applied Enhanced Oil Recovery with Emphasis on Gas/WAG		Son-Huu Do
Applied Statistical Modeling and Data Analytics for Reservoir Performance Analysis		Dr. Srikanta Mishra
Artificial Lift		Rajan Chokshi
Artificial Lift and Production Optimization Solutions		Rajan Chokshi
Assessing Well Integrity Risk: A Qualitative Model		Jerry Dethlefs
Assessing Wellbore Safety Integrity		Shah Kabir
Assessment of Petroleum Properties		Russell Bertholf
Asset Integrity Management		Neil Flemming
Basic Oilfield Corrosion and Control via Chemical Solutions		Mohamed Abou Zour
Basic Pressure - Transient Test Analysis		W. John Lee
Basic Reservoir Engineering		Hemanta Mukherjee
Basics of Artificial Lift Systems		Hemanta Mukherjee
Basics of Geomodeling – An Overview for Reservoir Engineers		David Garner
Big Loop — Quantification of Reservoir Uncertainties from Seismic to Simulation for Reliable Production Forecast		Taha Taha
Borehole Surveying Awareness		Angus L. Jamieson
Caprock Integrity for Thermal Recovery		Pat McLellan
Cased Hole and Production Log Evaluation		James J. Smolen
Casing and Tubing Design		Peter Erpelding
Cement Evaluation and Remediation		James Smolen, William K. (Bill) Ott
Cement Remediation		William K. (Bill) Ott
Challenges of Sub-Salt Exploration and Development in Deep Sea Middle East and North Africa		Bjorn Wygrala, Bernard Montaron, Lisa Marlow
Chemical Enhanced Recovery		Mojdeh Delshad
Chemical EOR: The Screening, Design, Implementation and Monitoring of Projects		Alistair Fletcher
Clear Writing for Engineers and Technical Professionals		John Sturtevant
Coalbed Methane Evaluation and Development		Steve Hennings
Considerations for Thermal Well Design		Mark Chartier
Contemporary Topics for Liquid-Rich Shale (LRS) Reservoirs: Fluid Sampling, Characterization and Gas-Injection EOR		Brent Thomas
Critical Geomechanics Concepts and Applications to Unconventionals Completions		Neal Nagel, Marisela Sanchez-Nagel
Data Analytics for Drilling Process Improvement		Carlos Damski
Data-Driven Reservoir Modeling		Shahab D. Mohaghegh
Decisions, Decisions, Decisions		Susan Peterson
Deep and Ultra Deepwater Petroleum Development		Peter Aird
Deepwater Drilling and Production Technology		Terry N. Gardner
Design and Optimization of Artificial Lift Systems		Hemanta Mukherjee
Design of Fiber-Optic DTS and DAS Well Installations		Dennis Dria, Bill Shroyer
Developing Strategic Thinking and Planning Skills		Dr Kamel Ben-Naceur
Developing, Understanding and Application of Type Curves in the WCSB		Art McMullen
DFIT - The Unconventional Well Test: Theory, Design, and Interpretation		David P. Craig
Diagnosis and Analysis of Waterfloods		Shah Kabir
Diagnosis and Practical Solutions for Wellbore Fluid and Heat Flow Problems		Shah Kabir, Rashid Hasan
Digital Oil Fields Building Blocks		Mike Williamson
Directional Drilling		Ludovic Macresy, Stephane Menand, Anas Sikal, Fabien Momot, Ahmed Bougacha
Discovery and Recovery Thinking in Shales		Creties Jenkins
Drillstring Mechanics		Ludovic Macresy, Stephane Menand, Anas Sikal, Fabien Momot, Ahmed Bougacha
Effective Planning and Execution of Oil and Gas Projects		Williams Chirinos
Engineering Interpretation and Integration of Microseismic Results		Norm Warpinski
Enhanced Oil Recovery Fundamentals		Larry W. Lake
Enhanced Oil Recovery Methods for Conventional Reservoirs - A Lifeline for an Old and "Tired" Reservoir?		Hemanta K. Sarma
Enhancing Performance of Ongoing EOR Pilots		Ashok K. Singhal
Ensuring Reliable SCAL Data for Reservoir Modeling		Shawket Ghedan
EOR: Fundamentals, Screening, Field Testing, and Planning Considerations		Ashok K. Singhal
ESP Application Design for Production Engineers		Sandy Williams, Matt Hackworth
ESP Basic		Mike Berry, David Divine
ESP Teardown and Root Cause Failure Analysis		Jeff Dwiggins, Arthur Watson
Estimation, Classification and Reporting of Reserves and Resources		Douglas Peacock
Estimation, Classification and Reporting of Reserves and Resources		Dr John W. Barker
Evaluation of Canadian Oil and Gas Properties		John Carlson, Hayley Silberg, Cameron P. Six, Keith Carr, Miles Hughes, Matthew O’Blenes, Barry Hanson, Liam O’Brien, Tamara Warren
Everyone Can Be a Leader: How to Influence with or Without Authority		Lori R. Dalrymple
Facilities Sand Management for the Upstream Oil & Gas Industry		Dr. Hank Rawlins
Fiber-Optic Sensing: Introduction to the Technology and In-Well Sensing Applications		Dennis Dria
Field Development Economics		Mark Cook, David Palmer
Field Developments and Technical Solutions - Marginal Fields (2 Days)		Ahmed Aly
Field Developments and Technical Solutions - Marginal Fields (5 Days)		Ahmed Aly
Field Piloting for EOR/IOR Schemes		Ashok K. Singhal
Filtration and Separations Technical Training for Oil and Gas, Chemical and Petrochemical Industries - Principles, Applications, and Troubleshooting		David Engel, Heath Burns
Flow Assurance & Production Chemistry Course		Ali Moosavi, Dalia Abdallah, Gordon M. Graham
Flow Assurance—Managing Flow Dynamics and Production Chemistry		Abul Jamaluddin
Flow-Control-Devices for Thermal Recovery Operations		Kousha Gohari, Mazda Irani, Oscar Becerra Moreno
Fluid Flow and Rock Mechanics Aspects of Hydraulically Fractured Wells		M. Y. Soliman
Forecasting Well Production Data in Unconventional Resources		Dilhan Ilk
Formation and Prevention of Oilfield Scale: From the Laboratory to the Field (1 Day)		Eric Mackay
Formation Damage Prevention		Michael Byrne
Formation Damage in Waterflooding, Produced Water Re-Injection and EOR		Pavel Bedrikovetsky
Foundations of Petroleum Reservoir Simulation		Khalid Aziz
Fracpacking for Sand Control		Wm. David Norman
Fracturing Fundamentals for Non-Fracers		Carl T. Montgomery
Full Field Optimization For Gas-Lift Assets		Dr. Rajan Chokshi
Fundamentals of Petroleum Engineering		Dr. Shedid A. Shedid
Fundamentals of Reservoir Description & Modeling with Geostatistics		David O. Ogbe
Fundamentals of Reservoir Simulation		J. Robert Gochnour
Fundamentals of SPE-PRMS		Art McMullen
Fundamentals of Subsurface Development Planning for Coalbed Methane		Laurent Alessio
Fundamentals of Thermal Well Design		Trent Kaiser, Mark Chartier
Gas EOR in Tight Unconventionals		Curtis Hays Whitson
Gas Field Development: Offshore Projects		Prof Peter Behrenbruch
Gas Shale Reservoirs Evaluation Methods		Reza Rezaee
Geological Sequestration of CO₂		Charles Fox, S. M. (Sam) Avasthi, J. M. (Jay) Avasthi
Geology for Engineers		Thomas F. Moslow, Jean-Yves Chatellier
Geomechanical Aspects in CO₂ Storage		Schlumberger Limited
Geomechanics for Conventional and Unconventional Resources		Zachariah John Pallikathekathil
Geomechanics for Holistic Sand Management		Chee Phuat Tan
Geophysical Application to Petroleum Engineering		Peter Bartok
GHG and CCS Regulatory and Legal Frameworks		Kipp Coddington
Global Energy Markets		Dr. Kamel Ben-Naceur
Heavy Oil Exploitation		Abul Jamaluddin
High Pressure High Temperature Cementing		Salim Taoutaou
History Matching and Conditioning Reservoir Models to Dynamic Data		Akhil Datta-Gupta
Horizontal Drilling – Design Applications		Dr Robello Samuel
Horizontal Well Completions		Dr. Sudiptya Banerjee, W. Aaron Burton
How to Use ISO and API Standards for Artificial Lift Systems		David McCalvin
Hydraulic Fracturing Optimisation		Ahmed Abou-Sayed
Hydraulic Fracturing – A Concise Overview		Carl T. Montgomery, Wm. David Norman
Hydraulic Fracturing – Design and Treatment		Michael Smith, Carl T. Montgomery
Hydraulic Fracturing/Pressure Analysis		Michael Smith
Hydrocarbon Value Chains - From Crude Oil to Products		Godwin J. Igwe
Industrial IOT’s – Oilfield Automation at Lower Total Cost of Ownership		Donald Paul
Installation and Workover Control Systems (IWOCS)		Brian Skeels
Integrated Core Analysis, Modelling and Reservoir Characterisation: Module 1 - Conventional Core Analysis and Reservoir Zonation		Peter Behrenbruch
Integrated Petroleum Economics and Risk Analysis		M.A. Mian
Intelligent Well Planning and Execution with Comprehensive Risk Management		Artem Fedorov, Cecilia Malagon, Tiberiu Ioan
Intelligent Wells, ICDs and AICDs: An Introduction to Advanced Completion Technology		Michael Konopczynski
Introduction to Managed Pressure Drilling (MPD) and Underbalanced Drilling (UBD)		Deepak M. Gala
Introduction to Coiled Tubing Operations		Ed Smalley
Introduction to Commissioning and Initial Startup		Grant Gibson, Howard Duhon
Introduction to Drilling with Casing Technology		Ming Zo Tan, Steve Rosenberg
Introduction to EPC Project Management		Reza Dehghan, Ashok Kumar, Kamran Hazini, Behmanesh Sharif
Introduction to Fiber Optic Distributed Temperature, Acoustic, and Chemical Sensing (DTS, DAS, and DCS)		James J. Smolen
Introduction to Financial Management in the Oil and Gas Industry		Peggy L. Hedges
Introduction to High Pressure / High Temperature (HPHT) Development Well Design		Miguel Rosato, Anas Mohamad Sofian
Introduction to HPHT Completions		Miguel Rosato
Introduction to Liquefied Natural Gas Industry: Infrastructure, Regulation and Markets		Tom Russo
Introduction to Machine Learning for Petroleum Engineers		Carlos Damski
Introduction to Managed Pressure Drilling		Deepak M. Gala
Introduction to Managed Pressure Drilling Fundamentals		Abdul Saboor
Introduction to Offshore Decommissioning		Brian G. Twomey
Introduction to Oil and Gas Exploration and Production		Anastasis Kokkinos
Introduction to Re-fracturing Fundamentals		Tim Leshchyshyn
Introduction to Reservoir Engineering		Rob Lavoie, Brian Weatherill
Introduction to Sand Control		Philip Wassouf
Introduction to Underbalanced Drilling		Deepak M. Gala
Introduction to Valuing Information in Unconventional Resources		Kent Burkholder, Ellen Coopersmith
Introduction to Waterflooding		Rob Lavoie, Brian Weatherill
Machine Learning Image Processing MLIP		Zeyar Aung, Omar Al-Farisi
Managed Pressure Drilling		Deepak M. Gala
Management of Major Accident Hazards through an IADC Compliant Drilling HSE Case		Mark Cowan
Managing in the Current Environment; Mitigating Risks and Uncertainties to Maximise Upstream Returns		Ian Tchacos
Managing Project Risk and Uncertainty in Economic Evaluations		Mark Schneider
Managing Your Business Using PRMS (Petroleum Resources Management System)		John Etherington, Rawdon Seager
Managing Your Business Using PRMS and SEC Standards (2018 Update)		John Etherington, Rawdon Seager, Joshua Oletu
Mastering Uncertainty and Risk in Unconventional		Creties D. Jenkins
Microbial Control in Oil and Gas Applications		Terry M. Williams
Microbiologically Influenced Corrosion (MIC): Causes and Preventive Methods and Technologies		Reza Javaherdashti
Microseismic Imaging of Hydraulic Fracturing - An Overview		Kenneth Mahrer
Mitigating Bias, Blindness, and Illusion in E&P Decision Making		Creties Jenkins
Modern Production Data Analysis for Unconventional Reservoirs		David Anderson
Modern Well Design		Bernt S. Aadnoy
Modified EOR Methods for Better Displacement		Birol M.R. Demiral
Monte Carlo Simulation for the Oil and Gas Industry		Susan Peterson
Multiphase Pumping: Fundamentals to Field Applications		Hisham Saadawi
Multistage Completions, Fracturing, and Refracturing in Shales		W. Aaron Burton, Sergey Kotov
New Applications of Machine Learning to Oil & Gas Exploration and Production		Dr. Bernard Montaron
Oil and Gas Economics and Uncertainty (1-Day)		Rodney Schulz
Oil and Gas Economics and Uncertainty (2-Day)		Rodney Schulz
Oil and Gas Reserves: The SEC Reporting Rules		W. John Lee
Oil and Gas Well Operators Crew Resource Management (WOCRM) (1 Day)		Don Evans
Oil Sands Geomechanics		Dale Walters, Tony Settari
Oilfield 4.0: Where Petroleum Intersects the 4th Industrial Revolution		Peadar McKevitt
Oilfield Data Analytics - An Advanced Look at Engineering Application of Artificial Intelligence & Machine Learning		Shahab D. Mohaghegh
Oilfield Microbiology: The Fundamentals of Targeting, Testing and Treating		Virginia Wornstaff
Operational Excellence in Facilities and Major Capital Projects		Abdullah Al-Shoraian Al-Mutairi, Hanafi Younes
Optimising Existing Waterfloods		Brian Weatherill, Rob Lavoie
Optimizing Gas Fields Using Integrated Asset Modeling (IAM), and Introduction to Optimizing Shale Gas and Tight Oil Fields		S. M. (Sam) Avasthi, Luiz C. Amado and J. M. (Jay) Avasthi
Optimizing the Value of Oil and Gas Fields from Inception to Abandonment		Alok Jain
Overview of Pure-Solvent and Steam-Solvent Analysis and Design for Thermal In-Situ Operations		Mazda Irani
Overview of SAGD Analytical Models and Their Assumptions and Limitations		Mazda Irani
Overview of Subsea Well Abandonment		Bart Joppe, Darin Hilton
Permanent Plug and Abandonment of Wells – A Roadmap for Engineers		Mahmoud Khalifeh
Petrophysical Input to Geomechanics Modelling		Colin McPhee
Practical Application of PRMS (Petroleum Resources Management System)		John Etherington, Rawdon Seager
Practical Aspects of CO₂ Flooding EOR		Charles E. Fox, S. M. (Sam) Avasthi, J. M. (Jay) Avasthi
Practical Aspects of CO₂ Flooding EOR and CO₂ Geosequestration		Charles E. Fox, S. M. (Sam) Avasthi, J. M. (Jay) Avasthi
Practical Aspects of Thermal EOR		Paul L. Bondor, Ashok K. Singhal, S. M. (Sam) Avasthi
Practical Aspects of Thermal EOR – An Advanced Course		Paul L. Bondor, Ashok K. Singhal, S. M. (Sam) Avasthi
Practical Course on Waterflooding		Dr. Ganesh Thakur, Dr. Ted Frankiewicz
Practical Decline Curve Analysis		Brian Weatherill
Practical Reservoir Surveillance and Management Techniques for EOR/IOR Projects		Paul L. Bondor, Ashok K. Singhal, S. M. (Sam) Avasthi
Practical Techniques for Screening Deepwater Offshore Oil and Gas Exploration Prospects		Luiz C. Amado, S. M. (Sam) Avasthi
Practical Wireline Formation Testing and Sampling		Mohamed Hashem
Pressure Transient Analysis		Tim Whittle
Principal Aspects of Water Flooding – From Water Source to Oil Export		Andrew Parker
Principals and Application of SCAL Data for Heavy Oil Reservoirs		Shawket Ghedan
Principles of Gas Well Performance and Deliquification		Bob Pearson
Principles of Well Performance; Artificial Lift and Gas-well Deliquification		Bob Pearson
PRMS - Then and Now		Charles Vanorsdale
Process Safety for E&P Operations		Mark Hansen
Production Decline Analysis—Vertical and Horizontal Wells		Steven W. Poston
Production Forecasts and Reserves Estimates in Unconventional Resources		W. John Lee
Production Optimisation System		Atef Abdelhady
Production Optimization Using NODAL Analysis		Samson Ibukun
Project Risk, Uncertainty and Decision Analysis (1 Day)		James (Jim) Gouveia, Mark A. McLane
Project Risk, Uncertainty and Decision Analysis (2 Days)		James (Jim) Gouveia, Mark A. McLane
PVT in Modeling Horizontal Multi-Fractured Wells in Ultra-Tight Rock		Curtis Hays Whitson
Python for Petroleum Data Analytics		Shahab D. Mohaghegh
Quality Control Techniques for Prospects and Acquisitions		Robert C. Shoup
Rapid Evaluation of SAGD Projects Using Type Wells and Statistical Aggregation		James (Jim) Gouveia, Bill Spackman, Jeanine Vany
Re-Fracturing – Candidate Selection and Design		Michael B. Smith
Reciprocal Mentoring: Building Connections That Make a Difference!		Lori R. Dalrymple
Reserves Assessment in Matured Assets		Shah Kabir
Reservoir Aspects of Horizontal and Multilateral Wells		Sada Joshi
Reservoir Characterization: From the Laboratory to the Field		Larry W. Lake
Reservoir Compartmentalization: 21st Century Concepts & Applications		Jon Rotzien
Reservoir Heterogeneity and Characterization		Jerry L. Jensen, Larry W. Lake
Reservoir Simulation for Practical Decision Making		Dean C. Rietz, Miles R. Palke
Reservoir Surveillance of Mature Floods Using Streamline-based Workflows		Rod P. Batycky, Marco R. Thiele
Review for the Principles and Practice Exam		Richard G. Hughes, Bob W. Chase
Rigless Intervention Best Practices for Coiled Tubing, Slickline, and Wireline		Ron Zbitowsky, Todd Green
Optimizing Reliability, Risk and Compliance Through Human Factors Leadership		Don Evans
Optimizing Reliability, Risk and Compliance Through Human Factors Leadership		Don Evans and Ross Preston
Optimizing Reliability, Risk and Compliance Through Human Factors Leadership (1-Day Masterclass)		Don Evans and Ross Preston
SAGD and In-Situ Recovery Technologies Development in Alberta, Canada		K.C. Yeung
Sand Control Design and Execution		Kesavan Govinathan
Sand Control Design and Optimisation		Sharifudin Salahudin
Sand Control for Heavy Oil Development		Mahdi Mahmoudi, Jeff Cyre and Vahid Fattahpour
Science and Technology of Water Treating		John M. Walsh
Screening and Field Piloting for EOR Project Development		Ashok K. Singhal
Screening of Reservoirs for EOR/IOR		Ashok K. Singhal
Separator Design and Troubleshooting		Robert Chin, Victor van Asperen
Shale Analytics		Shahab D. Mohaghegh
Shale and Tight Reservoir Evaluation and Development		Steve Hennings
Shale and Tight Reservoir Overview		Steve Hennings
Shale and Tight Reservoir Technical Analysis		Steve Hennings
Shale Hydraulic Fracturing: Design and Analysis		Steve Hennings
Shale PVT and Sampling		Mathias Lia Carlsen
Shale Resource Development - A Step by Step Process from Exploration/Appraisal to Development/Production and Rejuvenation		Usman Ahmed
Shale Selection, Completions, Fracturing and Production		George E. King
Social, Psychological and Cognitive Factors in Project Decision-Making		Howard Duhon
Social, Psychological and Cognitive Factors in Project Decision-Making		Howard Duhon
Solving the Challenges of Field Scale Heavy Oil and Oil Sands Simulation		Shawket Ghedan
SPE Leadership Academy: Leading in a Transforming World		Loïc Sadoulet, Jens Meyer
Strategic Leadership in the E&P Business		Mason Oghenejobo
Strategic Surveillance: Cost-Effective Options		Ashok K. Singhal
Streamline Simulation: Theory and Practice		Akhil Datta-Gupta
Subsea Well Interventions
Tar Mats and Bitumen Deposition; Origins and Properties		Oliver C. Mullins
Technical Writing and Publishing: Tools, Techniques, and Strategies		Kenneth Mahrer
Technical Writing Workshop for Engineers		Camille Jensen
The Applications and Operation of Surface Jet Pumps to Enhance Oil and Gas Production		Sacha Sarshar, Najam Ali Beg
The Art of Facilitation - How to Make Any Course Engaging		Colleen Watson
The Fundamentals of Coalbed Methane Development		Don Sharples
The Science and Technology of Water Management in Upstream Operations		John Walsh, Ken Martins
The Sustainability Imperative: Making the Case and Driving Change (1 Day)		Johana Dunlop, Linda Battalora
The Sustainability Imperative: Making the Case and Driving Change (2 Days)		Johana Dunlop, R.L. (Roland) Moreau, Linda Y. Brewer, Alison Taylor
Thermal Reservoir Simulation for SAGD		Mike Carlson
Thermal Well Design and Integrity		Todd A. Zahacy
Thermal-Hydraulics Design and Optimization		Mazda Irani
Tight Gas Reservoir Development		Ismail M. Buhidma
Tips and Traps for SAGD Thermal Modelling: Better Quality Production Estimates		Mike Carlson
Transient Well Testing		Medhat M. (Med) Kamal
Unconventional Petroleum Engineering for Non-Engineers		Steve Hennings
Unconventional Reservoir Development		Steve Hennings
Unconventional Reservoir Production (Rate Transient) Analysis		Chris Clarkson
Unconventional Resource Assessment and Valuation		James (Jim) Gouveia
Unconventional: Production and Data Analysis		Dr. Reinaldo Jose Angulo Yznaga
Understanding Inorganic Scaling —Mechanisms, Control and Management		Gordon M. Graham
Understanding Well Integrity Over the Full Well Life Cycle		Simon Sparke
Upstream Petroleum Economics—Deterministic Models, Fiscal Regimes, and Stochastic Modeling Tools		Wumi Iledare
Using Project Resource Analysis to Manage Your Business		Creties Jenkins, Mark A. McLane
Water Treating for Shale Operations		John M. Walsh, Krishan Bansal
Waterflooding Concepts, Design Prediction and Optimization		Iraj Ershaghi
Waterflooding: Performance Predictions and Surveillance		Mike Wiggins
Well Abandonment and Integrity Overview		John Slofstra, Peter Wallis
Well Integrity and Barrier Management – Managing Risks and Assuring Reliability		Bibak Das
Well Integrity Challenges From Casing Failures During Fracturing		George E. King
Well Integrity Impacts and Requirements for Fracturing and Acidizing in New and Old Wells (1 Day)		George E. King
Well Integrity Impacts and Requirements for Fracturing and Acidizing in New and Old Wells (Half Day)		George E. King
Well Integrity in the Operate Phase of the Well Lifecycle		Simon Sparke
Well Plugging and Abandonment (P&A)		Tom Leeson, Brian Twomey
Well Production Optimization		Fabio Gonzalez, Siyavash Motealleh
Well Stimulation: Theory and Application		John Yilin Wang
Well Test Analysis and Design		M.O. Onyekonwu
Well Test Interpretation		Louis Mattar
Well Testing - Getting the Objectives Right		Giovanni Da Prat
Well Treatment and Stimulation		H.A. Nasr-El-Din